After migrating an older forum turns out 20% of the users have invalid emails (detected using neverbounce). This causes horrible bounce reports that mess up my email delivery (get listed in spam filters fast), I’m using sendgrid and SES. I want to:
- stop discourse or sendgrid/SES from trying to send mails to these invalid mails
- keep the user accounts active because some of this users are active and know their username and password.
I could introduce the invalid mails into the sendgrid/SES spam emails but that would not stop discourse from trying to email them and also i can’t manually introduce 20k mails in the sendgrid’s spam section.
How can I solve this?